CN2606826Y - Float ball valve - Google Patents
Float ball valve Download PDFInfo
- Publication number
- CN2606826Y CN2606826Y CN 03240325 CN03240325U CN2606826Y CN 2606826 Y CN2606826 Y CN 2606826Y CN 03240325 CN03240325 CN 03240325 CN 03240325 U CN03240325 U CN 03240325U CN 2606826 Y CN2606826 Y CN 2606826Y
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- valve
- spheroid
- valve body
- valve seat
- ring
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Abstract
A float ball valve is provided, wherein, both the upstream and downstream sealing valve seat are provided with a V (or U) shape section; the two V (or U) shape edge loop lines are pressed to lean on a sphere surface, forming two sealing lines; a support ring is arranged; another end of the upstream sealing valve is arranged in the ring-shaped groove of the support ring; a plurality of uniformly distributed round blind holes arranged on the other end face of the support ring as spring seats, and the ends of a plurality of springs are embedded in the spring seats; an O-shaped sealing ring is arranged between the outer edge of the support ring and the inner wall of a front valve body; the downstream sealing valve seat is individually arranged between the sphere and a back valve body.
Description
Technical field:
The utility model relates to a kind of floating ball valve.Belong to the control valve unit that controlling liquid is blocked or dredged.
Background technique:
The structure of tradition floating ball valve as shown in Figure 1, comprises valve rod 1, spheroid 2, upstream valve seat 3, downstream valve seat 4, upstream spring 5, valve body 6.Blocking and dredging of upstream and downstream fluid is to rotate the duct that makes on the valve ball medial axis by valve ball in valve body to communicate with the upstream and downstream mouth of pipe and realize.The installation ring-shaped valve seats is the parts for preventing to leak between ball and valve body, and valve seat contacts palpus closely with ball surface for this reason.But, because ring-shaped valve seats and the contacted surface of valve ball are the arc endless belt of a broad, area of contact is bigger, and rubbing surface is also bigger, causes the keying resistance of conventional ball valve very big, special when having solid particle in the fluid, as unlatching meeting by force valve seat and valve ball are caused than galling, at this moment, the spheroid of wearing and tearing since the gap increase and down vacillate moving, so just cause the upstream no longer to seal, and had only the downstream sealing.Another situation is, when temperature raises, produces gas in the valve, and valve pocket pressure can not be let out certainly, thereby causing that valve body rises splits, and has an accident.Existing ball valve only is the single sealing in upstream, and sealing effect is poor.In addition, traditional ball valve processing difficulties, cost height.For overcoming the shortcoming of prior art, the special the utility model that proposes.
Summary of the invention:
The purpose of this utility model provides a kind of floating ball valve, and the upstream and downstream seal valve seat of this ball valve and the friction type between the spheroid have reduced the damage of surface friction drag and spherome surface through improving; Behind the prooving of valve seat, can compensate automatically in the axial direction, guaranteed the sealing effect of ball valve; As high temperature action during in valve body, can releasing pressure automatically, split to avoid ball valve to rise.
The technical solution of the utility model is as follows: floating ball valve comprises front valve shell and rear valve body, and forward and backward valve body connects with bolt, and a gasket seal is housed therebetween.Inner chamber at forward and backward valve body is provided with a spheroid, is provided with the fluid passage that communicates with forward and backward valve body, size equates on spheroid.Be provided with a square groove at the top of spheroid, the valve rod of its top cooperates wherein, and handle is equipped with on the top of valve rod, fixes with gland one of in valve rod and the forward and backward valve body.Respectively be provided with upstream seal valve seat and downstream seal valve seat between spheroid and forward and backward valve body, they have V (or U) shape section, and two edge ring line pressures of its V (or U) shape lean against the sphere part of spheroid, form two sealing lines.Inner chamber at front valve shell is provided with a bracing ring, and the other end of upstream seal valve seat is installed in the annular groove of bracing ring.Be provided with a plurality of uniform circular blind holes as spring seat on the end face of the opposite side of bracing ring, the end of a plurality of springs is embedded in wherein.Be provided with O-ring seals between the outer rim of bracing ring and front valve shell inwall, O-ring seals is installed in the circular groove that is located on the bracing ring outer rim.The downstream seal valve seat then is arranged separately between the inner chamber of spheroid and rear valve body, and two edge loop wires of its V (or U) shape also are pressed against the sphere part of spheroid, form two sealing lines.
Advantage of the present utility model is: 1. owing to be the contact of ring-type V (or U) shape line, line contact between seal valve seat and the spheroid
Rubbing surface significantly reduces surface friction drag less than the usual ball valve arc sassafras face that rubs, ball valve
The keying resistance is little, opens and closes laborsavingly, can avoid being clipped in when containing solid particle in the fluid
Between the rubbing surface, cause damage, additionally increase surface friction drag ball surface.Because ball valve upstream fluid entrance point be equipped with band spring and bracing ring ring-type V (or
U) shape valve seat, when two sharp edge of this valve seat wear and tear, under the promotion of spring, can
With automatic compensation, still can guarantee the sealing effect of ball valve.3. when ball valve is closed, if high temperature action is arranged in valve body this moment, produce in the valve body greater than
The high pressure of upstream fluid, this moment, high pressure can be pushed spring open by support ring backward, will
High pressure is let out upstream, splits to avoid ball valve risen.4. on support ring, be provided with O-ring seals, thereby can guarantee that at bracing ring be recuperation valve
The wear extent of ball and seal valve seat and when mobile, still reliable sealing effect can be arranged.
Description of drawings:
Fig. 1 is traditional ball-valve structure schematic representation that floats;
Fig. 2 is the structural representation of floating ball valve of the present utility model;
Embodiment:
As shown in Figure 2: floating ball valve comprises front valve shell 1 and rear valve body 2, and forward and backward valve body connects with bolt, and a gasket seal 3 is housed therebetween.Inner chamber in forward and backward valve body 1 and 2 is provided with a spheroid 4, is provided with the fluid passage 1 and 2 that communicate with forward and backward valve body, that size equates on spheroid 4.Be provided with a square groove at the top of spheroid 4, the valve rod 5 of its top cooperates wherein, and handle 6 is equipped with at the top of valve rod 5, and is fixing with gland 7 one of in valve rod 5 and the forward and backward valve body 1 and 2.Between spheroid 4 and forward and backward valve body, respectively be provided with upstream seal valve seat 8 and downstream seal valve seat 9, they all have V (or U) shape section, the double loop wire at its V (or U) shape edge is pressed against the sphere part of spheroid 4, and the other end of upstream seal valve seat 8 is installed in the annular groove 11 of a bracing ring 10.Be provided with a plurality of uniform circular blind holes as spring seat on the bracing ring 10 with on the reverse annular end face of annular groove, the right-hand member of a plurality of springs 13 is embedded in wherein.Be provided with O RunddichtringO 14 between the outer rim of bracing ring 10 and front valve shell 1 inwall, O-ring seals 14 is installed in and is located in the circular groove set on bracing ring 10 outer rims.9 of downstream seal valve seats are arranged separately between spheroid 4 and rear valve body 2 inner chambers.
The left end of floating ball valve is the inlet opening, under the thrust of spring 13, the two outstanding loop wires of V (or U) shape valve seat 8 are close on the sphere of spheroid 4, make spheroid 4 and valve seat 8 form the Line of contact that twice are close to spheroid 4, bear the pressure of spheroid 4, and played spheroid 4 in the process of spinning movement, strengthened the stable effect of axial centre, significantly reduced the possibility of valve seat 8 wearing and tearing and distortion.When using handle 6 that floating ball valve is closed, spring 13 and pressure medium promote bracing ring 10 simultaneously and drive V (or U) shape upstream valve seats 8 and be close to spheroid 4, form sealing mechanism, and the pressure of medium is big more, and thrust is just big more, and sealing is just strong more.And in long-term switching process, valve seat 8 natures can be subjected to inevitable wearing and tearing, and at this moment the spring 13 between bracing ring 10 and the valve body 8 still can promote bracing ring 10 and drive valve seat 8, and valve seat 8 and spheroid 4 are close to, and has formed the automatic compensation sealing of upstream.Under the effect of thrust, valve body and the hydrodynamic pressure of spring 13, bearing ring 10 and ring-type V (or U) the shape valve seat 8 that embeds wherein can move back and forth along valve body 1 and 2 horizontal axiss within the specific limits.
When valve body 1 and 2 inner chambers produce the situation of boosting unusually, when for example the pressure of valve body 1 and 2 inner chambers is higher than the thrust of upstream spring, pushed at high pressure bracing ring 10 breaks away from spheroid 4 with upstream seal valve seat 8,4 of valve seat 8 and spheroids have formed the gap, the high pressure of valve body 1 and 2 inner chambers will be excreted to the upstream, reach balance up to the pressure of valve body 1 and 2 inner chambers and the thrust of upstream pressure and spring 13, at this moment, upstream seal valve seat 8 just can keep sealing again, like this, can avoid rising and splitting the danger of valve body owing to boosting unusually of valve body 1 and 2 inner chambers.
In addition and since floating ball valve valve body 1 and 2 with spheroid 4 between the spring 13 that is provided with can lead static, so, floating ball valve have can valve body 1 and the unusual elevated pressure of 2 inner chambers be discharged into the upstream interior pressure oneself let out function.Under average operating, valve body 1 and 2 materials cast steel, cast iron or brass, ball material bronze, brass, cast steel, seal valve seat 8 and 9 materials brass, bronze, graphitiferous rubber, ebonite etc. have certain flexible material, require a little higher than seal valve seat 8 of material hardness of spheroid 4 and 9 material.If floating ball valve is used for corrosive fluid, the material of spheroid 4 can be used corrosion-resistant stainless steel.
Claims (1)
1. a floating ball valve comprises front valve shell and rear valve body, and forward and backward valve body connects with bolt, and a gasket seal is housed therebetween, is provided with a spheroid at the inner chamber of forward and backward valve body, is provided with the fluid passage that communicates with forward and backward valve body, size equates on spheroid; Be provided with a square groove at the top of spheroid, the valve rod of its top cooperates wherein, and handle is equipped with on the top of valve rod; One of valve rod and forward and backward valve body are fixed with gland; Between spheroid and forward and backward valve body, respectively be provided with upstream seal valve seat and downstream seal valve seat, it is characterized in that:
Described upstream seal valve seat (8) and downstream seal valve seat (9) all have V (or U) shape section, and two edge ring line pressures of its V (or U) shape lean against the sphere part of spheroid (4), form two sealing lines; Inner chamber at front valve shell (1) is provided with a bracing ring (10), and the other end of upstream seal valve seat (8) is installed in the annular groove (11) of bracing ring (10); Be provided with a plurality of uniform circular blind holes as spring seat on the end face of the opposite side of bracing ring (10), the end of a plurality of springs (13) is embedded in wherein; Be provided with O-ring seals (14) between the outer rim of bracing ring (10) and front valve shell (1) inwall, O-ring seals (14) is installed in the circular groove set on the bracing ring outer rim; Downstream seal valve seat (9) then is arranged separately between spheroid (4) and the rear valve body (2), and two edge loop wires of its V (or U) shape also are pressed against the sphere part of spheroid (4), form two sealing lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03240325 CN2606826Y (en) | 2003-03-10 | 2003-03-10 | Float ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03240325 CN2606826Y (en) | 2003-03-10 | 2003-03-10 | Float ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2606826Y true CN2606826Y (en) | 2004-03-17 |
Family
ID=34168010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03240325 Expired - Fee Related CN2606826Y (en) | 2003-03-10 | 2003-03-10 | Float ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2606826Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285530B (en) * | 2008-05-07 | 2011-06-01 | 浙江沃尔达铜业有限公司 | Pump ball-valve |
| CN104154264A (en) * | 2014-08-18 | 2014-11-19 | 洪元生 | Safety double-sealed ball valve |
| CN104712785A (en) * | 2015-03-24 | 2015-06-17 | 上海电气阀门有限公司 | High-temperature ball valve used for solar power generation system fused salt pipeline |
| CN105333202A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Valve controller structure |
| CN105402431A (en) * | 2015-10-08 | 2016-03-16 | 张荣斌 | Ball valve with pressure detection function |
| CN106996463A (en) * | 2017-03-17 | 2017-08-01 | 南通捷瑞阀门有限公司 | A kind of bronze plug valve and its production technology |
| CN108953658A (en) * | 2018-08-23 | 2018-12-07 | 赵旭锋 | A kind of ball valve |
| WO2020250105A1 (en) * | 2019-06-13 | 2020-12-17 | Truflo Rona S.r.l. | Selector and sealing organ for multi selector valve |
| CN114060563A (en) * | 2021-12-21 | 2022-02-18 | 江苏华英阀业有限公司 | Valve seat structure of ultra-low temperature nonmetal sealing floating ball valve |
-
2003
- 2003-03-10 CN CN 03240325 patent/CN2606826Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285530B (en) * | 2008-05-07 | 2011-06-01 | 浙江沃尔达铜业有限公司 | Pump ball-valve |
| CN104154264A (en) * | 2014-08-18 | 2014-11-19 | 洪元生 | Safety double-sealed ball valve |
| CN104712785A (en) * | 2015-03-24 | 2015-06-17 | 上海电气阀门有限公司 | High-temperature ball valve used for solar power generation system fused salt pipeline |
| CN105402431A (en) * | 2015-10-08 | 2016-03-16 | 张荣斌 | Ball valve with pressure detection function |
| CN105333202A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Valve controller structure |
| CN106996463A (en) * | 2017-03-17 | 2017-08-01 | 南通捷瑞阀门有限公司 | A kind of bronze plug valve and its production technology |
| CN108953658A (en) * | 2018-08-23 | 2018-12-07 | 赵旭锋 | A kind of ball valve |
| CN108953658B (en) * | 2018-08-23 | 2019-09-10 | 远大阀门集团有限公司 | A kind of ball valve |
| WO2020250105A1 (en) * | 2019-06-13 | 2020-12-17 | Truflo Rona S.r.l. | Selector and sealing organ for multi selector valve |
| CN114060563A (en) * | 2021-12-21 | 2022-02-18 | 江苏华英阀业有限公司 | Valve seat structure of ultra-low temperature nonmetal sealing floating ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Hong Yuansheng Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040317 |